77023-79-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77023-79-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,2 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77023-79:
(7*7)+(6*7)+(5*0)+(4*2)+(3*3)+(2*7)+(1*9)=131
131 % 10 = 1
So 77023-79-1 is a valid CAS Registry Number.